Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from Davic Miller:

 1) Support busy polling generically, for all NAPI drivers.  From Eric
    Dumazet.

 2) Add byte/packet counter support to nft_ct, from Floriani Westphal.

 3) Add RSS/XPS support to mvneta driver, from Gregory Clement.

 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes
    Frederic Sowa.

 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai.

 6) Add support for VLAN device bridging to mlxsw switch driver, from
    Ido Schimmel.

 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski.

 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko.

 9) Reorganize wireless drivers into per-vendor directories just like we
    do for ethernet drivers.  From Kalle Valo.

10) Provide a way for administrators "destroy" connected sockets via the
    SOCK_DESTROY socket netlink diag operation.  From Lorenzo Colitti.

11) Add support to add/remove multicast routes via netlink, from Nikolay
    Aleksandrov.

12) Make TCP keepalive settings per-namespace, from Nikolay Borisov.

13) Add forwarding and packet duplication facilities to nf_tables, from
    Pablo Neira Ayuso.

14) Dead route support in MPLS, from Roopa Prabhu.

15) TSO support for thunderx chips, from Sunil Goutham.

16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon.

17) Rationalize, consolidate, and more completely document the checksum
    offloading facilities in the networking stack.  From Tom Herbert.

18) Support aborting an ongoing scan in mac80211/cfg80211, from
    Vidyullatha Kanchanapally.

19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits)
  net: bnxt: always return values from _bnxt_get_max_rings
  net: bpf: reject invalid shifts
  phonet: properly unshare skbs in phonet_rcv()
  dwc_eth_qos: Fix dma address for multi-fragment skbs
  phy: remove an unneeded condition
  mdio: remove an unneed condition
  mdio_bus: NULL dereference on allocation error
  net: Fix typo in netdev_intersect_features
  net: freescale: mac-fec: Fix build error from phy_device API change
  net: freescale: ucc_geth: Fix build error from phy_device API change
  bonding: Prevent IPv6 link local address on enslaved devices
  IB/mlx5: Add flow steering support
  net/mlx5_core: Export flow steering API
  net/mlx5_core: Make ipv4/ipv6 location more clear
  net/mlx5_core: Enable flow steering support for the IB driver
  net/mlx5_core: Initialize namespaces only when supported by device
  net/mlx5_core: Set priority attributes
  net/mlx5_core: Connect flow tables
  net/mlx5_core: Introduce modify flow table command
  net/mlx5_core: Managing root flow table
  ...

10 files changed, 242 insertions, 46 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 623c6ed8764a..1e19c8fd8b82 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -137,6 +137,31 @@ struct stmmac_extra_stats {
 	unsigned long pcs_link;
 	unsigned long pcs_duplex;
 	unsigned long pcs_speed;
+	/* debug register */
+	unsigned long mtl_tx_status_fifo_full;
+	unsigned long mtl_tx_fifo_not_empty;
+	unsigned long mmtl_fifo_ctrl;
+	unsigned long mtl_tx_fifo_read_ctrl_write;
+	unsigned long mtl_tx_fifo_read_ctrl_wait;
+	unsigned long mtl_tx_fifo_read_ctrl_read;
+	unsigned long mtl_tx_fifo_read_ctrl_idle;
+	unsigned long mac_tx_in_pause;
+	unsigned long mac_tx_frame_ctrl_xfer;
+	unsigned long mac_tx_frame_ctrl_idle;
+	unsigned long mac_tx_frame_ctrl_wait;
+	unsigned long mac_tx_frame_ctrl_pause;
+	unsigned long mac_gmii_tx_proto_engine;
+	unsigned long mtl_rx_fifo_fill_level_full;
+	unsigned long mtl_rx_fifo_fill_above_thresh;
+	unsigned long mtl_rx_fifo_fill_below_thresh;
+	unsigned long mtl_rx_fifo_fill_level_empty;
+	unsigned long mtl_rx_fifo_read_ctrl_flush;
+	unsigned long mtl_rx_fifo_read_ctrl_read_data;
+	unsigned long mtl_rx_fifo_read_ctrl_status;
+	unsigned long mtl_rx_fifo_read_ctrl_idle;
+	unsigned long mtl_rx_fifo_ctrl_active;
+	unsigned long mac_rx_frame_ctrl_fifo;
+	unsigned long mac_gmii_rx_proto_engine;
 };
 
 /* CSR Frequency Access Defines*/
@@ -408,12 +433,13 @@ struct stmmac_ops {
 	void (*set_eee_pls)(struct mac_device_info *hw, int link);
 	void (*ctrl_ane)(struct mac_device_info *hw, bool restart);
 	void (*get_adv)(struct mac_device_info *hw, struct rgmii_adv *adv);
+	void (*debug)(void __iomem *ioaddr, struct stmmac_extra_stats *x);
 };
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {
 	void (*config_hw_tstamping) (void __iomem *ioaddr, u32 data);
-	void (*config_sub_second_increment) (void __iomem *ioaddr);
+	u32 (*config_sub_second_increment) (void __iomem *ioaddr, u32 clk_rate);
 	int (*init_systime) (void __iomem *ioaddr, u32 sec, u32 nsec);
 	int (*config_addend) (void __iomem *ioaddr, u32 addend);
 	int (*adjust_systime) (void __iomem *ioaddr, u32 sec, u32 nsec,
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
index 82de68b1a452..36d3355f2fb0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
@@ -198,19 +198,19 @@ static int ipq806x_gmac_set_speed(struct ipq806x_gmac *gmac, unsigned int speed)
 	return 0;
 }
 
-static void *ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
+static int ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
 {
 	struct device *dev = &gmac->pdev->dev;
 
 	gmac->phy_mode = of_get_phy_mode(dev->of_node);
 	if (gmac->phy_mode < 0) {
 		dev_err(dev, "missing phy mode property\n");
-		return ERR_PTR(-EINVAL);
+		return -EINVAL;
 	}
 
 	if (of_property_read_u32(dev->of_node, "qcom,id", &gmac->id) < 0) {
 		dev_err(dev, "missing qcom id property\n");
-		return ERR_PTR(-EINVAL);
+		return -EINVAL;
 	}
 
 	/* The GMACs are called 1 to 4 in the documentation, but to simplify the
@@ -219,13 +219,13 @@ static void *ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
 	 */
 	if (gmac->id < 0 || gmac->id > 3) {
 		dev_err(dev, "invalid gmac id\n");
-		return ERR_PTR(-EINVAL);
+		return -EINVAL;
 	}
 
 	gmac->core_clk = devm_clk_get(dev, "stmmaceth");
 	if (IS_ERR(gmac->core_clk)) {
 		dev_err(dev, "missing stmmaceth clk property\n");
-		return gmac->core_clk;
+		return PTR_ERR(gmac->core_clk);
 	}
 	clk_set_rate(gmac->core_clk, 266000000);
 
@@ -234,18 +234,16 @@ static void *ipq806x_gmac_of_parse(struct ipq806x_gmac *gmac)
 							   "qcom,nss-common");
 	if (IS_ERR(gmac->nss_common)) {
 		dev_err(dev, "missing nss-common node\n");
-		return gmac->nss_common;
+		return PTR_ERR(gmac->nss_common);
 	}
 
 	/* Setup the register map for the qsgmii csr registers */
 	gmac->qsgmii_csr = syscon_regmap_lookup_by_phandle(dev->of_node,
 							   "qcom,qsgmii-csr");
-	if (IS_ERR(gmac->qsgmii_csr)) {
+	if (IS_ERR(gmac->qsgmii_csr))
 		dev_err(dev, "missing qsgmii-csr node\n");
-		return gmac->qsgmii_csr;
-	}
 
-	return NULL;
+	return PTR_ERR_OR_ZERO(gmac->qsgmii_csr);
 }
 
 static void ipq806x_gmac_fix_mac_speed(void *priv, unsigned int speed)
@@ -262,7 +260,7 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct ipq806x_gmac *gmac;
 	int val;
-	void *err;
+	int err;
 
 	val = stmmac_get_platform_resources(pdev, &stmmac_res);
 	if (val)
@@ -279,9 +277,9 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
 	gmac->pdev = pdev;
 
 	err = ipq806x_gmac_of_parse(gmac);
-	if (IS_ERR(err)) {
+	if (err) {
 		dev_err(dev, "device tree parsing error\n");
-		return PTR_ERR(err);
+		return err;
 	}
 
 	regmap_write(gmac->qsgmii_csr, QSGMII_PCS_CAL_LCKDT_CTL,
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 401383b252a8..f0d797ab74d8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -32,6 +32,7 @@
 #define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2
 #define SYSMGR_EMACGRP_CTRL_PHYSEL_WIDTH 2
 #define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003
+#define SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK 0x00000010
 
 #define EMAC_SPLITTER_CTRL_REG			0x0
 #define EMAC_SPLITTER_CTRL_SPEED_MASK		0x3
@@ -47,6 +48,7 @@ struct socfpga_dwmac {
 	struct regmap *sys_mgr_base_addr;
 	struct reset_control *stmmac_rst;
 	void __iomem *splitter_base;
+	bool f2h_ptp_ref_clk;
 };
 
 static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
@@ -116,6 +118,8 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
 		return -EINVAL;
 	}
 
+	dwmac->f2h_ptp_ref_clk = of_property_read_bool(np, "altr,f2h_ptp_ref_clk");
+
 	np_splitter = of_parse_phandle(np, "altr,emac-splitter", 0);
 	if (np_splitter) {
 		if (of_address_to_resource(np_splitter, 0, &res_splitter)) {
@@ -171,6 +175,11 @@ static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac)
 	ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << reg_shift);
 	ctrl |= val << reg_shift;
 
+	if (dwmac->f2h_ptp_ref_clk)
+		ctrl |= SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2);
+	else
+		ctrl &= ~(SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2));
+
 	regmap_write(sys_mgr_base_addr, reg_offset, ctrl);
 	return 0;
 }
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
index b3fe0575ff6b..8831a053ac13 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
@@ -34,6 +34,7 @@
 #define GMAC_FLOW_CTRL		0x00000018	/* Flow Control */
 #define GMAC_VLAN_TAG		0x0000001c	/* VLAN Tag */
 #define GMAC_VERSION		0x00000020	/* GMAC CORE Version */
+#define GMAC_DEBUG		0x00000024	/* GMAC debug register */
 #define GMAC_WAKEUP_FILTER	0x00000028	/* Wake-up Frame Filter */
 
 #define GMAC_INT_STATUS		0x00000038	/* interrupt status register */
@@ -177,6 +178,47 @@ enum inter_frame_gap {
 #define GMAC_FLOW_CTRL_TFE	0x00000002	/* Tx Flow Control Enable */
 #define GMAC_FLOW_CTRL_FCB_BPA	0x00000001	/* Flow Control Busy ... */
 
+/* DEBUG Register defines */
+/* MTL TxStatus FIFO */
+#define GMAC_DEBUG_TXSTSFSTS	BIT(25)	/* MTL TxStatus FIFO Full Status */
+#define GMAC_DEBUG_TXFSTS	BIT(24) /* MTL Tx FIFO Not Empty Status */
+#define GMAC_DEBUG_TWCSTS	BIT(22) /* MTL Tx FIFO Write Controller */
+/* MTL Tx FIFO Read Controller Status */
+#define GMAC_DEBUG_TRCSTS_MASK	GENMASK(21, 20)
+#define GMAC_DEBUG_TRCSTS_SHIFT	20
+#define GMAC_DEBUG_TRCSTS_IDLE	0
+#define GMAC_DEBUG_TRCSTS_READ	1
+#define GMAC_DEBUG_TRCSTS_TXW	2
+#define GMAC_DEBUG_TRCSTS_WRITE	3
+#define GMAC_DEBUG_TXPAUSED	BIT(19) /* MAC Transmitter in PAUSE */
+/* MAC Transmit Frame Controller Status */
+#define GMAC_DEBUG_TFCSTS_MASK	GENMASK(18, 17)
+#define GMAC_DEBUG_TFCSTS_SHIFT	17
+#define GMAC_DEBUG_TFCSTS_IDLE	0
+#define GMAC_DEBUG_TFCSTS_WAIT	1
+#define GMAC_DEBUG_TFCSTS_GEN_PAUSE	2
+#define GMAC_DEBUG_TFCSTS_XFER	3
+/* MAC GMII or MII Transmit Protocol Engine Status */
+#define GMAC_DEBUG_TPESTS	BIT(16)
+#define GMAC_DEBUG_RXFSTS_MASK	GENMASK(9, 8) /* MTL Rx FIFO Fill-level */
+#define GMAC_DEBUG_RXFSTS_SHIFT	8
+#define GMAC_DEBUG_RXFSTS_EMPTY	0
+#define GMAC_DEBUG_RXFSTS_BT	1
+#define GMAC_DEBUG_RXFSTS_AT	2
+#define GMAC_DEBUG_RXFSTS_FULL	3
+#define GMAC_DEBUG_RRCSTS_MASK	GENMASK(6, 5) /* MTL Rx FIFO Read Controller */
+#define GMAC_DEBUG_RRCSTS_SHIFT	5
+#define GMAC_DEBUG_RRCSTS_IDLE	0
+#define GMAC_DEBUG_RRCSTS_RDATA	1
+#define GMAC_DEBUG_RRCSTS_RSTAT	2
+#define GMAC_DEBUG_RRCSTS_FLUSH	3
+#define GMAC_DEBUG_RWCSTS	BIT(4) /* MTL Rx FIFO Write Controller Active */
+/* MAC Receive Frame Controller FIFO Status */
+#define GMAC_DEBUG_RFCFCSTS_MASK	GENMASK(2, 1)
+#define GMAC_DEBUG_RFCFCSTS_SHIFT	1
+/* MAC GMII or MII Receive Protocol Engine Status */
+#define GMAC_DEBUG_RPESTS	BIT(0)
+
 /*--- DMA BLOCK defines ---*/
 /* DMA Bus Mode register defines */
 #define DMA_BUS_MODE_SFT_RESET	0x00000001	/* Software Reset */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 371a669d69fd..c2941172f6d1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -397,6 +397,80 @@ static void dwmac1000_get_adv(struct mac_device_info *hw, struct rgmii_adv *adv)
 	adv->lp_pause = (value & GMAC_ANE_PSE) >> GMAC_ANE_PSE_SHIFT;
 }
 
+static void dwmac1000_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x)
+{
+	u32 value = readl(ioaddr + GMAC_DEBUG);
+
+	if (value & GMAC_DEBUG_TXSTSFSTS)
+		x->mtl_tx_status_fifo_full++;
+	if (value & GMAC_DEBUG_TXFSTS)
+		x->mtl_tx_fifo_not_empty++;
+	if (value & GMAC_DEBUG_TWCSTS)
+		x->mmtl_fifo_ctrl++;
+	if (value & GMAC_DEBUG_TRCSTS_MASK) {
+		u32 trcsts = (value & GMAC_DEBUG_TRCSTS_MASK)
+			     >> GMAC_DEBUG_TRCSTS_SHIFT;
+		if (trcsts == GMAC_DEBUG_TRCSTS_WRITE)
+			x->mtl_tx_fifo_read_ctrl_write++;
+		else if (trcsts == GMAC_DEBUG_TRCSTS_TXW)
+			x->mtl_tx_fifo_read_ctrl_wait++;
+		else if (trcsts == GMAC_DEBUG_TRCSTS_READ)
+			x->mtl_tx_fifo_read_ctrl_read++;
+		else
+			x->mtl_tx_fifo_read_ctrl_idle++;
+	}
+	if (value & GMAC_DEBUG_TXPAUSED)
+		x->mac_tx_in_pause++;
+	if (value & GMAC_DEBUG_TFCSTS_MASK) {
+		u32 tfcsts = (value & GMAC_DEBUG_TFCSTS_MASK)
+			      >> GMAC_DEBUG_TFCSTS_SHIFT;
+
+		if (tfcsts == GMAC_DEBUG_TFCSTS_XFER)
+			x->mac_tx_frame_ctrl_xfer++;
+		else if (tfcsts == GMAC_DEBUG_TFCSTS_GEN_PAUSE)
+			x->mac_tx_frame_ctrl_pause++;
+		else if (tfcsts == GMAC_DEBUG_TFCSTS_WAIT)
+			x->mac_tx_frame_ctrl_wait++;
+		else
+			x->mac_tx_frame_ctrl_idle++;
+	}
+	if (value & GMAC_DEBUG_TPESTS)
+		x->mac_gmii_tx_proto_engine++;
+	if (value & GMAC_DEBUG_RXFSTS_MASK) {
+		u32 rxfsts = (value & GMAC_DEBUG_RXFSTS_MASK)
+			     >> GMAC_DEBUG_RRCSTS_SHIFT;
+
+		if (rxfsts == GMAC_DEBUG_RXFSTS_FULL)
+			x->mtl_rx_fifo_fill_level_full++;
+		else if (rxfsts == GMAC_DEBUG_RXFSTS_AT)
+			x->mtl_rx_fifo_fill_above_thresh++;
+		else if (rxfsts == GMAC_DEBUG_RXFSTS_BT)
+			x->mtl_rx_fifo_fill_below_thresh++;
+		else
+			x->mtl_rx_fifo_fill_level_empty++;
+	}
+	if (value & GMAC_DEBUG_RRCSTS_MASK) {
+		u32 rrcsts = (value & GMAC_DEBUG_RRCSTS_MASK) >>
+			     GMAC_DEBUG_RRCSTS_SHIFT;
+
+		if (rrcsts == GMAC_DEBUG_RRCSTS_FLUSH)
+			x->mtl_rx_fifo_read_ctrl_flush++;
+		else if (rrcsts == GMAC_DEBUG_RRCSTS_RSTAT)
+			x->mtl_rx_fifo_read_ctrl_read_data++;
+		else if (rrcsts == GMAC_DEBUG_RRCSTS_RDATA)
+			x->mtl_rx_fifo_read_ctrl_status++;
+		else
+			x->mtl_rx_fifo_read_ctrl_idle++;
+	}
+	if (value & GMAC_DEBUG_RWCSTS)
+		x->mtl_rx_fifo_ctrl_active++;
+	if (value & GMAC_DEBUG_RFCFCSTS_MASK)
+		x->mac_rx_frame_ctrl_fifo = (value & GMAC_DEBUG_RFCFCSTS_MASK)
+					    >> GMAC_DEBUG_RFCFCSTS_SHIFT;
+	if (value & GMAC_DEBUG_RPESTS)
+		x->mac_gmii_rx_proto_engine++;
+}
+
 static const struct stmmac_ops dwmac1000_ops = {
 	.core_init = dwmac1000_core_init,
 	.rx_ipc = dwmac1000_rx_ipc_enable,
@@ -413,6 +487,7 @@ static const struct stmmac_ops dwmac1000_ops = {
 	.set_eee_pls = dwmac1000_set_eee_pls,
 	.ctrl_ane = dwmac1000_ctrl_ane,
 	.get_adv = dwmac1000_get_adv,
+	.debug = dwmac1000_debug,
 };
 
 struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins,
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 2e51b816a7e8..4c6486cc80fb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -136,6 +136,31 @@ static const struct stmmac_stats stmmac_gstrings_stats[] = {
 	STMMAC_STAT(irq_pcs_ane_n),
 	STMMAC_STAT(irq_pcs_link_n),
 	STMMAC_STAT(irq_rgmii_n),
+	/* DEBUG */
+	STMMAC_STAT(mtl_tx_status_fifo_full),
+	STMMAC_STAT(mtl_tx_fifo_not_empty),
+	STMMAC_STAT(mmtl_fifo_ctrl),
+	STMMAC_STAT(mtl_tx_fifo_read_ctrl_write),
+	STMMAC_STAT(mtl_tx_fifo_read_ctrl_wait),
+	STMMAC_STAT(mtl_tx_fifo_read_ctrl_read),
+	STMMAC_STAT(mtl_tx_fifo_read_ctrl_idle),
+	STMMAC_STAT(mac_tx_in_pause),
+	STMMAC_STAT(mac_tx_frame_ctrl_xfer),
+	STMMAC_STAT(mac_tx_frame_ctrl_idle),
+	STMMAC_STAT(mac_tx_frame_ctrl_wait),
+	STMMAC_STAT(mac_tx_frame_ctrl_pause),
+	STMMAC_STAT(mac_gmii_tx_proto_engine),
+	STMMAC_STAT(mtl_rx_fifo_fill_level_full),
+	STMMAC_STAT(mtl_rx_fifo_fill_above_thresh),
+	STMMAC_STAT(mtl_rx_fifo_fill_below_thresh),
+	STMMAC_STAT(mtl_rx_fifo_fill_level_empty),
+	STMMAC_STAT(mtl_rx_fifo_read_ctrl_flush),
+	STMMAC_STAT(mtl_rx_fifo_read_ctrl_read_data),
+	STMMAC_STAT(mtl_rx_fifo_read_ctrl_status),
+	STMMAC_STAT(mtl_rx_fifo_read_ctrl_idle),
+	STMMAC_STAT(mtl_rx_fifo_ctrl_active),
+	STMMAC_STAT(mac_rx_frame_ctrl_fifo),
+	STMMAC_STAT(mac_gmii_rx_proto_engine),
 };
 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 
@@ -497,6 +522,11 @@ static void stmmac_get_ethtool_stats(struct net_device *dev,
 			if (val)
 				priv->xstats.phy_eee_wakeup_error_n = val;
 		}
+
+		if ((priv->hw->mac->debug) &&
+		    (priv->synopsys_id >= DWMAC_CORE_3_50))
+			priv->hw->mac->debug(priv->ioaddr,
+					     (void *)&priv->xstats);
 	}
 	for (i = 0; i < STMMAC_STATS_LEN; i++) {
 		char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
index 76ad214b4036..a77f68918010 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
@@ -33,22 +33,25 @@ static void stmmac_config_hw_tstamping(void __iomem *ioaddr, u32 data)
 	writel(data, ioaddr + PTP_TCR);
 }
 
-static void stmmac_config_sub_second_increment(void __iomem *ioaddr)
+static u32 stmmac_config_sub_second_increment(void __iomem *ioaddr,
+					      u32 ptp_clock)
 {
 	u32 value = readl(ioaddr + PTP_TCR);
 	unsigned long data;
 
 	/* Convert the ptp_clock to nano second
-	 * formula = (1/ptp_clock) * 1000000000
+	 * formula = (2/ptp_clock) * 1000000000
 	 * where, ptp_clock = 50MHz.
 	 */
-	data = (1000000000ULL / 50000000);
+	data = (2000000000ULL / ptp_clock);
 
 	/* 0.465ns accuracy */
 	if (!(value & PTP_TCR_TSCTRLSSR))
 		data = (data * 1000) / 465;
 
 	writel(data, ioaddr + PTP_SSIR);
+
+	return data;
 }
 
 static int stmmac_init_systime(void __iomem *ioaddr, u32 sec, u32 nsec)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a5b869eb4678..c21015b68097 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -53,6 +53,7 @@
 #include "stmmac.h"
 #include <linux/reset.h>
 #include <linux/of_mdio.h>
+#include "dwmac1000.h"
 
 #define STMMAC_ALIGN(x)	L1_CACHE_ALIGN(x)
 
@@ -185,7 +186,7 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
 			priv->clk_csr = STMMAC_CSR_100_150M;
 		else if ((clk_rate >= CSR_F_150M) && (clk_rate < CSR_F_250M))
 			priv->clk_csr = STMMAC_CSR_150_250M;
-		else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M))
+		else if ((clk_rate >= CSR_F_250M) && (clk_rate < CSR_F_300M))
 			priv->clk_csr = STMMAC_CSR_250_300M;
 	}
 }
@@ -435,6 +436,7 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 	u32 ts_master_en = 0;
 	u32 ts_event_en = 0;
 	u32 value = 0;
+	u32 sec_inc;
 
 	if (!(priv->dma_cap.time_stamp || priv->adv_ts)) {
 		netdev_alert(priv->dev, "No support for HW time stamping\n");
@@ -598,24 +600,19 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 			 tstamp_all | ptp_v2 | ptp_over_ethernet |
 			 ptp_over_ipv6_udp | ptp_over_ipv4_udp | ts_event_en |
 			 ts_master_en | snap_type_sel);
-
 		priv->hw->ptp->config_hw_tstamping(priv->ioaddr, value);
 
 		/* program Sub Second Increment reg */
-		priv->hw->ptp->config_sub_second_increment(priv->ioaddr);
+		sec_inc = priv->hw->ptp->config_sub_second_increment(
+			priv->ioaddr, priv->clk_ptp_rate);
+		temp = div_u64(1000000000ULL, sec_inc);
 
 		/* calculate default added value:
 		 * formula is :
 		 * addend = (2^32)/freq_div_ratio;
-		 * where, freq_div_ratio = clk_ptp_ref_i/50MHz
-		 * hence, addend = ((2^32) * 50MHz)/clk_ptp_ref_i;
-		 * NOTE: clk_ptp_ref_i should be >= 50MHz to
-		 *       achieve 20ns accuracy.
-		 *
-		 * 2^x * y == (y << x), hence
-		 * 2^32 * 50000000 ==> (50000000 << 32)
+		 * where, freq_div_ratio = 1e9ns/sec_inc
 		 */
-		temp = (u64) (50000000ULL << 32);
+		temp = (u64)(temp << 32);
 		priv->default_addend = div_u64(temp, priv->clk_ptp_rate);
 		priv->hw->ptp->config_addend(priv->ioaddr,
 					     priv->default_addend);
@@ -2402,7 +2399,7 @@ static netdev_features_t stmmac_fix_features(struct net_device *dev,
 		features &= ~NETIF_F_RXCSUM;
 
 	if (!priv->plat->tx_coe)
-		features &= ~NETIF_F_ALL_CSUM;
+		features &= ~NETIF_F_CSUM_MASK;
 
 	/* Some GMAC devices have a bugged Jumbo frame support that
 	 * needs to have the Tx COE disabled for oversized frames
@@ -2410,7 +2407,7 @@ static netdev_features_t stmmac_fix_features(struct net_device *dev,
 	 * the TX csum insertionin the TDES and not use SF.
 	 */
 	if (priv->plat->bugged_jumbo && (dev->mtu > ETH_DATA_LEN))
-		features &= ~NETIF_F_ALL_CSUM;
+		features &= ~NETIF_F_CSUM_MASK;
 
 	return features;
 }
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index bba670c42e37..0faf16336035 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -29,7 +29,7 @@
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
-
+#include <linux/of_mdio.h>
 #include <asm/io.h>
 
 #include "stmmac.h"
@@ -196,25 +196,37 @@ int stmmac_mdio_register(struct net_device *ndev)
 {
 	int err = 0;
 	struct mii_bus *new_bus;
-	int *irqlist;
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
 	int addr, found;
+	struct device_node *mdio_node = NULL;
+	struct device_node *child_node = NULL;
 
 	if (!mdio_bus_data)
 		return 0;
 
+	if (IS_ENABLED(CONFIG_OF)) {
+		for_each_child_of_node(priv->device->of_node, child_node) {
+			if (of_device_is_compatible(child_node,
+						    "snps,dwmac-mdio")) {
+				mdio_node = child_node;
+				break;
+			}
+		}
+
+		if (mdio_node) {
+			netdev_dbg(ndev, "FOUND MDIO subnode\n");
+		} else {
+			netdev_warn(ndev, "No MDIO subnode found\n");
+		}
+	}
+
 	new_bus = mdiobus_alloc();
 	if (new_bus == NULL)
 		return -ENOMEM;
 
-	if (mdio_bus_data->irqs) {
-		irqlist = mdio_bus_data->irqs;
-	} else {
-		for (addr = 0; addr < PHY_MAX_ADDR; addr++)
-			priv->mii_irq[addr] = PHY_POLL;
-		irqlist = priv->mii_irq;
-	}
+	if (mdio_bus_data->irqs)
+		memcpy(new_bus->irq, mdio_bus_data, sizeof(new_bus->irq));
 
 #ifdef CONFIG_OF
 	if (priv->device->of_node)
@@ -228,10 +240,13 @@ int stmmac_mdio_register(struct net_device *ndev)
 	snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x",
 		 new_bus->name, priv->plat->bus_id);
 	new_bus->priv = ndev;
-	new_bus->irq = irqlist;
 	new_bus->phy_mask = mdio_bus_data->phy_mask;
 	new_bus->parent = priv->device;
-	err = mdiobus_register(new_bus);
+
+	if (mdio_node)
+		err = of_mdiobus_register(new_bus, mdio_node);
+	else
+		err = mdiobus_register(new_bus);
 	if (err != 0) {
 		pr_err("%s: Cannot register as MDIO bus\n", new_bus->name);
 		goto bus_register_fail;
@@ -239,7 +254,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 
 	found = 0;
 	for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
-		struct phy_device *phydev = new_bus->phy_map[addr];
+		struct phy_device *phydev = mdiobus_get_phy(new_bus, addr);
 		if (phydev) {
 			int act = 0;
 			char irq_num[4];
@@ -251,7 +266,8 @@ int stmmac_mdio_register(struct net_device *ndev)
 			 */
 			if ((mdio_bus_data->irqs == NULL) &&
 			    (mdio_bus_data->probed_phy_irq > 0)) {
-				irqlist[addr] = mdio_bus_data->probed_phy_irq;
+				new_bus->irq[addr] =
+					mdio_bus_data->probed_phy_irq;
 				phydev->irq = mdio_bus_data->probed_phy_irq;
 			}
 
@@ -278,13 +294,13 @@ int stmmac_mdio_register(struct net_device *ndev)
 			}
 			pr_info("%s: PHY ID %08x at %d IRQ %s (%s)%s\n",
 				ndev->name, phydev->phy_id, addr,
-				irq_str, dev_name(&phydev->dev),
+				irq_str, phydev_name(phydev),
 				act ? " active" : "");
 			found = 1;
 		}
 	}
 
-	if (!found) {
+	if (!found && !mdio_node) {
 		pr_warn("%s: No PHY found\n", ndev->name);
 		mdiobus_unregister(new_bus);
 		mdiobus_free(new_bus);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index d02691ba3d7f..6a52fa18cbf2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -146,7 +146,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 	if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
 		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
 
-	if (plat->phy_node || plat->phy_bus_name)
+	if ((plat->phy_node && !of_phy_is_fixed_link(np)) || plat->phy_bus_name)
 		plat->mdio_bus_data = NULL;
 	else
 		plat->mdio_bus_data =